Egyptian squash player Mohamed Elshorbagy defeated fellow countryman Amr Shabana in the US Open final on Sunday.
Elshorbagy needed only 46 minutes to be beat Shabana 3-1 in the final: 8-11, 11-9, 11-3 and 11-3.
The 23-year-old claimed his 199th victory on the PSA World Tour, which lifted him to the top of the world ranking for the first time.
"I'm feeling so happy right now," Elshorbagy said after the game.
"I just can't believe what has happened. It's just been such an unbelievable week for me - I knew I could become number one coming into this tournament but I didn't think both things would happen."
Elshorbagy reached the final after beating world number one Frenchman Gregory Gaultier in the semifinal.
"I had a tough draw to get to the final, I had to beat Gregory Gaultier and a legend like Amr Shabana to win, so not only did I get to number one, I feel like I have proved it as well."
Elshorbagy will take part in next month's 2014 Qatar Championship, where he will face tough competition from title holder Nick Matthew.
"It's been a great season until now but there's the World Championships in three weeks so I'm hopefully going to make it very hard for the other players and keep my momentum going," Elshorbagy said.
"I'm feeling confident right now but that's not fooling me, I know I still need to work very hard.
"For me becoming World No.1 is just the first step on the ladder."
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